export default function (target) {
    var arguments$1 = arguments;

    for (var i = 1, j = arguments.length; i < j; i++) {
        var source = arguments$1[i] || {};
        for (var prop in source) {
            if (source.hasOwnProperty(prop)) {
                var value = source[prop];
                if (value !== undefined) {
                    target[prop] = value;
                }
            }
        }
    }

    return target;
};